If a=`1/2` and b=2 find the value of `a/b`

If a=2 and b=-2, find the value of : (i) a^(2)+b^(2) (ii) a^(2)+ab+b^(2) (iii) a^(2)-b^(2)

If a+b=7 and a b=12 , find the value of (a^2-a b+b^2)

If a+b=7 and a b=12 , find the value of (a^2-a b+b^2)

If a-b=5 and a b=12 , find the value of a^2+b^2

If a=2 and b=3, then find the values of each of the following: (i) a^a+b^b (ii) a^b+b^a (iii) a^b (a/b)^a (iv) (1/a+1/b)^a

If a+b=7 and ab=12 find the value of a^(2)-ab+b^(2) .

If a=2 and b=3 , then find the values of each of the following: (a) (a/b)^a (b) (1/a+1/b)^a

If a=2 and b=3 , then find the values of each of the following: (a) (a/b)^a (b) (1/a+1/b)^a

Find the value of (b-7)^2

If a+b+c=2, ab+bc+ca=-1 and abc=-2 , find the value of a^(3)+b^(3)+c^(3) .